| Country | Action | Action Date | Effective Date |
|---|
| Aruba | Extension | 01/01/1986 | |
| AUSTRIA | Signature | 25/07/1960 | |
| AUSTRIA | Ratification | 06/12/1960 | |
| AUSTRIA | Notification | 01/12/1986 | |
| BELGIUM | Signature | 14/12/1959 | |
| BELGIUM | Ratification | 05/06/1972 | |
| BELGIUM | Declaration | 05/06/1972 | |
| CROATIA | Accession | 27/01/1993 | 28/02/1993 |
| CZECH REPUBLIC | Succession | 08/01/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Signature | 26/03/1991 | |
| CZECHOSLOVAKIA | Approval | 26/03/1991 | 27/04/1991 |
| DENMARK | Signature | 16/03/1961 | |
| DENMARK | Ratification | 26/10/1961 | |
| DENMARK | Notification | 01/12/1986 | |
| FINLAND | Signature | 16/09/1991 | |
| FINLAND | Ratification | 16/09/1991 | 17/10/1991 |
| FINLAND | Declaration | 16/09/1991 | |
| FRANCE | Signature | 14/12/1959 | |
| FRANCE | Ratification | 26/06/1978 | 27/07/1978 |
| FRANCE | Notification | 01/12/1986 | |
| GERMANY FEDERAL REPUBLIC | Signature | 31/12/1963 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 30/01/1970 | |
| GERMANY FEDERAL REPUBLIC | Notification | 01/12/1986 | |
| GREECE | Signature | 14/12/1959 | |
| GREECE | Declaration | 14/12/1959 | |
| HOLY SEE | Accession | 21/06/1979 | 22/07/1979 |
| HOLY SEE | Notification | 01/12/1986 | |
| HUNGARY | Signature | 03/02/1992 | |
| ICELAND | Signature | 14/12/1959 | |
| ICELAND | Ratification | 05/04/1963 | |
| ICELAND | Notification | 01/12/1986 | |
| IRELAND, REPUBLIC OF | Signature | 13/01/1964 | |
| IRELAND, REPUBLIC OF | Ratification | 17/04/1964 | |
| Isle of Man | Extension | 30/03/1993 | |
| ITALY | Signature | 14/12/1959 | |
| ITALY | Ratification | 06/08/1963 | |
| ITALY | Notification | 01/12/1986 | |
| Land Berlin | Extension | 30/01/1970 | |
| LIECHTENSTEIN | Signature | 22/05/1991 | |
| LIECHTENSTEIN | Ratification | 22/05/1991 | 23/06/1991 |
| LUXEMBOURG | Signature | 14/12/1959 | |
| MACEDONIA THE FYR OF | Accession | 30/03/1994 | 01/05/1994 |
| MALTA | Signature | 07/05/1968 | |
| MALTA | Ratification | 06/05/1969 | |
| NETHERLANDS THE | Signature | 14/12/1959 | |
| NETHERLANDS THE | Ratification | 26/04/1962 | |
| NETHERLANDS THE | Notification | 24/11/1986 | |
| NORWAY | Signature | 14/12/1959 | |
| NORWAY | Ratification | 05/04/1963 | |
| NORWAY | Notification | 01/12/1986 | |
| POLAND | Signature | 11/07/1994 | |
| POLAND | Ratification | 10/10/1994 | 11/11/1994 |
| PORTUGAL | Signature | 27/04/1978 | |
| PORTUGAL | Ratification | 03/08/1982 | 04/09/1982 |
| Rhodesia And Nyasaland | Extension | 13/02/1961 | 27/11/1961 |
| ROMANIA | Signature | 02/10/1995 | |
| ROMANIA | Ratification | 19/05/1998 | 20/06/1998 |
| RUSSIAN FEDERATION | Signature | 07/11/1996 | |
| RUSSIAN FEDERATION | Ratification | 17/09/1999 | 18/10/1999 |
| SLOVAK REPUBLIC | Succession | 08/01/1993 | 01/01/1993 |
| SLOVENIA | Accession | 02/07/1992 | 03/08/1992 |
| SPAIN | Accession | 17/12/1976 | 18/01/1977 |
| SWEDEN | Signature | 21/06/1967 | |
| SWEDEN | Ratification | 11/12/1967 | |
| SWITZERLAND | Signature | 25/04/1991 | |
| SWITZERLAND | Ratification | 25/04/1991 | 26/05/1991 |
| SWITZERLAND | Declaration | 25/04/1991 | |
| TURKEY | Signature | 14/12/1959 | |
| UNITED KINGDOM | Signature | 14/12/1959 | |
| UNITED KINGDOM | Ratification | 13/02/1961 | |
| UNITED KINGDOM | Notification | 01/12/1986 | |
| UNITED KINGDOM | Declaration | 30/03/1993 | |
| YUGOSLAVIA | Accession | 15/09/1977 | 16/10/1977 |